SpaceX Almost Lands the Falcon 9 Rocket Booster At Sea. Almost. 

Yesterday, SpaceX successfully launched a Falcon 9 rocket into space, carrying the critically important Jason-3 Earth-observing satellite into orbit. That was the primary mission of the launch, and it went smoothly and perfectly. Not surprisingly, most people were more excited for the secondary mission, which was to bring the first stage booster back down to Earth. This went pretty well in December, when the booster was brought back down to a landing pad at Cape Canaveral. This time, though, the...